Reconstruction of pollution history in tropical Asia by using sediment cores.

在泰国湾、柔佛海峡、雅加达湾和北部湾采集了~50cm ~ ~100cm的沉积物岩心。在切片层中测量了藿烷、多环芳烃（PAHs）、线性烷基苯和支链烷基苯，重建了污染历史。在泰国湾、柔佛海峡、雅加达湾和东京湾，汽车衍生碳氢化合物的输入有所增加。在这些水体中，观察到合成洗涤剂衍生污染物的输入增加。线性烷基苯的同分异构体组成表明马尼拉湾和雅加达湾集水区污水处理系统的覆盖范围扩大。

Sediment cores of ～50cm to ～100cm were collected from Gulf of Thailand, Straits of Johor, Jakarta Bay, and Gulf of Tonkin. Hopanes, polycyclic aromatic hydrocarbons (PAHs) and linear and branched alkylbenzenes were measured in sliced layers to reconstruct pollution history. In Gulf of Thailand, Straits of Johor, Jakarta Bay, and Gulf of Tonkin, there observed increased inputs of automobile- derived hydrocarbons. In these water bodies, increased inputs of synthetic-detergent-derived contaminants were observed. Isomeric compositions of linear alkylbenzenes suggest expansion of the coverage of sewage treatment systems in the catchment of Manila Bay and Jakarta Bay.